Schlage A80PD PLY 626 11-085 10-001 C123 Cylindrical Lock, Storeroom Function, C123 Keyway, Plymouth Knob with Rose, Satin Chrome Finish Cold-rolled steel, and machined and threaded hubs prevent loosening of the lockset by bolting the chassis to the door Heavy-duty cast mounting plate with specially tapped holes, keeps lockset tight on the door Patented door range adjuster allows quick and easy adjustment for doors ranging from 1 38&#034; to 1 7 8&#034; (35 mm to 48 mm) thick